cheat/internal/display/write.go
Chris Lane a81dd96ff4 fix: rename display.go
Rename `display.go` to `write.go`. (I forgot to do this previously.)
2020-11-27 23:05:02 -05:00

37 lines
768 B
Go

package display
import (
"fmt"
"os"
"os/exec"
"strings"
"github.com/cheat/cheat/internal/config"
)
// Write writes output either directly to stdout, or through a pager,
// depending upon configuration.
func Write(out string, conf config.Config) {
// if no pager was configured, print the output to stdout and exit
if conf.Pager == "" {
fmt.Print(out)
os.Exit(0)
}
// otherwise, pipe output through the pager
parts := strings.Split(conf.Pager, " ")
pager := parts[0]
args := parts[1:]
// run the pager
cmd := exec.Command(pager, args...)
cmd.Stdin = strings.NewReader(out)
cmd.Stdout = os.Stdout
// handle errors
err := cmd.Run()
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to write to pager: %v", err))
os.Exit(1)
}
}